Two centuries ago, Zenmai Zamurai worked as a thief. One night, while stealing from a house, he fell into a well and died. Resurrected by Daifukunokami, a wind‑up key was affixed to his head. If the key unwound, Zennosuke would die; the only way to wind it back up is by performing good deeds. To help him, he receives the Dango‑ken, a sword adorned with skewered Japanese dumplings. Whenever Zenmai Zamurai witnesses injustice or disorder, he fires the dumplings from the sword into the mouths of the wrongdoers. Upon eating them, the people feel sudden happiness and recognize their mistakes. He assists the villagers in many ways...